SLIDING ROOF SYSTEM, Diagnostic DTC:B2342

DTC Code DTC Name
B2342 Switch Failure

DESCRIPTION

This DTC is stored when the sliding roof drive gear sub-assembly (sliding roof ECU) detects that the sliding roof control switch is stuck for 30 seconds or more.

DTC No. Detection Item DTC Detection Condition Trouble Area
B2342 Switch Failure Sliding roof drive gear sub-assembly (sliding roof ECU) detects sliding roof control switch is stuck for 30 seconds or more.

  • Sliding roof drive gear sub-assembly (Sliding roof ECU)

  • Map light assembly (Sliding roof control switch)

  • Harness or connector

WIRING DIAGRAM

Refer to DTC B2341.

Click here

CAUTION / NOTICE / HINT

Note

When the sliding roof drive gear sub-assembly (sliding roof ECU) is removed and reinstalled or replaced, it requires initialization.

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PROCEDURE


  1. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Sliding Roof / Data List.

    5. Read the Data List according to the display on the GTS.


      Body Electrical > Sliding Roof > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Open Switch Failure(Past) Open switch failure signal (Past) ON or OFF

      ON: Sliding roof open switch failure signal (Past)

      OFF: No sliding roof open switch failure signal (Past)

      		 -
      Close Switch Failure(Past) Close switch failure signal (Past) ON or OFF

      ON: Sliding roof close switch failure signal (Past)

      OFF: No sliding roof close switch failure signal (Past)

      		 -
      Up Switch Failure(Past) Up switch failure signal (Past) ON or OFF

      ON: Sliding roof up switch failure signal (Past)

      OFF: No sliding roof up switch failure signal (Past)

      		 -
      Down Switch Failure(Past) Down switch failure signal (Past) ON or OFF

      ON: Sliding roof down switch failure signal (Past)

      OFF: No sliding roof down switch failure signal (Past)

      		 -
      Open Switch Failure(Current) Open switch failure signal (Current) ON or OFF

      ON: Sliding roof open switch failure signal (Current)

      OFF: No sliding roof open switch failure signal (Current)

      		 -
      Close Switch Failure(Current) Close switch failure signal (Current) ON or OFF

      ON: Sliding roof close switch failure signal (Current)

      OFF: No sliding roof close switch failure signal (Current)

      		 -
      Up Switch Failure(Current) Up switch failure signal (Current) ON or OFF

      ON: Sliding roof up switch failure signal (Current)

      OFF: No sliding roof up switch failure signal (Current)

      		 -
      Down Switch Failure(Current) Down switch failure signal (Current) ON or OFF

      ON: Sliding roof down switch failure signal (Current)

      OFF: No sliding roof down switch failure signal (Current)

      		 -

      Body Electrical > Sliding Roof > Data List
      Tester Display
      Open Switch Failure(Past)
      Close Switch Failure(Past)
      Up Switch Failure(Past)
      Down Switch Failure(Past)
      Open Switch Failure(Current)
      Close Switch Failure(Current)
      Up Switch Failure(Current)
      Down Switch Failure(Current)
      Result
      Proceed to
      "OFF" appears on the GTS screen
      "ON" appears on the GTS screen

    "OFF" appears on the GTS screen

    REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU) Click here

    "ON" appears on the GTS screen

  2. CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU - BODY GROUND)


    1. Disconnect the Q8 sliding roof drive gear sub-assembly (sliding roof ECU) connector.

    2. Disconnect the Q7 map light assembly (sliding roof control switch) connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q8-7 (OPN) - Body ground Always 10 kΩ or higher
      Q8-6 (DWN) - Body ground Always 10 kΩ or higher
      Q8-5 (CLS) - Body ground Always 10 kΩ or higher
      Q8-4 (UP) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT MAP LIGHT ASSEMBLY (SLIDING ROOF CONTROL SWITCH)


    1. A01QT3WN02
      *1 DOWN
      *2 UP

      Remove the map light assembly (sliding roof control switch).

      Click here

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      5 (UP) - 1 (GND3) UP switch is pressed Below 1 Ω
      5 (UP) - 1 (GND3) UP switch is not pressed 10 kΩ or higher
      4 (DOWN) - 1 (GND3) DOWN switch is pressed Below 1 Ω
      4 (DOWN) - 1 (GND3) DOWN switch is not pressed 10 kΩ or higher
      3 (OPN) - 1 (GND3) OPEN switch is pressed Below 1 Ω
      3 (OPN) - 1 (GND3) OPEN switch is not pressed 10 kΩ or higher
      2 (CLS) - 1 (GND3) CLOSE switch is pressed Below 1 Ω
      2 (CLS) - 1 (GND3) CLOSE switch is not pressed 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU) Click here

    NG

    REPLACE MAP LIGHT ASSEMBLY (SLIDING ROOF CONTROL SWITCH) Click here